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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 971 · 40 sums
TalentJR

The trick (Urdhva Tiryagbhyam): Top: multiply crosswise — first top × second bottom, then first bottom × second top — and add (or subtract). Bottom: multiply the two bottoms. Simplify by dividing top and bottom by their HCF. Give the answer as a fraction like 17/12.

NameDateTime takenScore ___ / 40
  1. 1.4/9 + 6/10 =
  2. 2.3/5 − 4/12 =
  3. 3.1/3 + 3/9 =
  4. 4.1/5 + 9/12 =
  5. 5.3/8 + 3/4 =
  6. 6.4/5 + 1/2 =
  7. 7.3/12 + 2/3 =
  8. 8.1/7 + 1/10 =
  9. 9.1/2 + 1/6 =
  10. 10.2/7 + 2/12 =
  11. 11.1/2 + 6/9 =
  12. 12.6/7 + 3/5 =
  13. 13.1/3 + 7/10 =
  14. 14.10/11 − 4/5 =
  15. 15.2/6 + 3/8 =
  16. 16.1/9 + 1/3 =
  17. 17.6/8 + 4/5 =
  18. 18.1/10 + 10/11 =
  19. 19.5/8 + 2/4 =
  20. 20.1/9 + 1/3 =
  21. 21.1/3 + 1/3 =
  22. 22.1/11 + 2/5 =
  23. 23.7/10 − 2/4 =
  24. 24.6/7 + 1/2 =
  25. 25.5/10 + 2/5 =
  26. 26.5/7 + 1/2 =
  27. 27.5/10 + 1/3 =
  28. 28.3/4 − 1/8 =
  29. 29.5/12 + 1/4 =
  30. 30.2/8 − 1/5 =
  31. 31.1/2 + 2/3 =
  32. 32.7/8 − 3/10 =
  33. 33.8/11 − 4/11 =
  34. 34.2/3 + 1/7 =
  35. 35.11/12 − 7/8 =
  36. 36.2/9 + 5/8 =
  37. 37.10/11 + 6/8 =
  38. 38.6/7 − 1/3 =
  39. 39.4/11 + 2/6 =
  40. 40.8/10 − 1/2 =

Answer key

  1. 47/45
  2. 4/15
  3. 2/3
  4. 19/20
  5. 9/8
  6. 13/10
  7. 11/12
  8. 17/70
  9. 2/3
  10. 19/42
  11. 7/6
  12. 51/35
  13. 31/30
  14. 6/55
  15. 17/24
  16. 4/9
  17. 31/20
  18. 111/110
  19. 9/8
  20. 4/9
  21. 2/3
  22. 27/55
  23. 1/5
  24. 19/14
  25. 9/10
  26. 17/14
  27. 5/6
  28. 5/8
  29. 2/3
  30. 1/20
  31. 7/6
  32. 23/40
  33. 4/11
  34. 17/21
  35. 1/24
  36. 61/72
  37. 73/44
  38. 11/21
  39. 23/33
  40. 3/10

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